If you look you can find several 7/8 ounce loads that come in under
8,000 psi.. Two of my favorites are 800X 1200fps at 7500 psi and a
572 load which is 1150fps at 7,200 psi. I have used both and they are listed on Hodgdon powder site and I had the pressures confirmed by testing. Both use common components which I like a lot. I hate speciality loads with some weird was which seems to be sold only one place in the world.
Ive even seen 12 loads with pressure as low as 3,500psi at 1125 fps. But I always worry about cold weather ignition problems with ultra light loads.